/* ═══════════════════════════════════════════════════════════════════════
   Newsletter Subscribe Popup — Institutional Design
   ═══════════════════════════════════════════════════════════════════════ */

#asi-subscribe-popup {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 300ms ease;
  pointer-events: none;
}

#asi-subscribe-popup.asi-popup-visible {
  opacity: 1;
  pointer-events: all;
}

.asi-popup-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 27, 45, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.asi-popup-card {
  position: relative;
  background: #FFFFFF;
  border-radius: 8px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.05);
  max-width: 460px;
  width: 90%;
  padding: 2.5rem;
  transform: translateY(20px);
  transition: transform 300ms ease;
}

#asi-subscribe-popup.asi-popup-visible .asi-popup-card {
  transform: translateY(0);
}

.asi-popup-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  color: #9CA3AF;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 180ms ease, background 180ms ease;
  line-height: 1;
}

.asi-popup-close:hover {
  color: #374151;
  background: #F3F4F6;
}

.asi-popup-content {
  text-align: center;
}

.asi-popup-eyebrow {
  font-family: var(--font-body, 'DM Sans', sans-serif);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #B8860B;
  margin-bottom: 1rem;
}

.asi-popup-title {
  font-family: var(--font-display, 'DM Serif Display', Georgia, serif);
  font-size: clamp(1.25rem, 1rem + 1vw, 1.625rem);
  font-weight: 400;
  color: #111827;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.asi-popup-desc {
  font-family: var(--font-body, 'DM Sans', sans-serif);
  font-size: 0.9375rem;
  color: #6B7280;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.asi-popup-form {
  display: flex;
  gap: 0.5rem;
  max-width: 380px;
  margin: 0 auto 1rem;
}

.asi-popup-form input[type="email"] {
  flex: 1;
  font-family: var(--font-body, 'DM Sans', sans-serif);
  font-size: 0.9375rem;
  padding: 0.7rem 1rem;
  border: 1px solid #D1D5DB;
  border-radius: 3px;
  outline: none;
  transition: border-color 180ms ease;
  background: #FAFBFC;
  color: #111827;
}

.asi-popup-form input[type="email"]:focus {
  border-color: #1E3A5F;
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
}

.asi-popup-form input[type="email"]::placeholder {
  color: #9CA3AF;
}

.asi-popup-form .btn-primary {
  white-space: nowrap;
  padding: 0.7rem 1.5rem;
  font-size: 0.875rem;
}

.asi-popup-trust {
  font-family: var(--font-body, 'DM Sans', sans-serif);
  font-size: 0.75rem;
  color: #9CA3AF;
}

/* Mobile responsive */
@media (max-width: 640px) {
  .asi-popup-card {
    padding: 2rem 1.5rem;
    margin: 1rem;
  }
  
  .asi-popup-form {
    flex-direction: column;
  }
  
  .asi-popup-form .btn-primary {
    width: 100%;
    justify-content: center;
  }
}